Goggles

Abstract

Disclosed are goggles. The goggles are provided so that they comprise: a main body unit worn on the face of a user; a lens unit that is coupled to the main body unit and has a fastening protrusion formed to protrude toward the main body unit; and a fastening unit that has a fastening recess formed therein and is coupled to the main body to lock and unlock the fastening protrusion, wherein the fastening unit includes a body part movably coupled to the main body unit and a guide protrusion for guiding the moving direction of the body part, the main body unit has a guide hole formed at a position corresponding to the guide protrusion, the guide protrusion being received in the guide hole, and the fastening unit further included a protrusion part coupled to the body part to push the fastening protrusion outward such that the lens unit is separated from the main body unit when the fastening protrusion is unlocked according to the movement of the body part into the main body unit.

The invention claimed is: 
     
       1. Goggles comprising:
 a body unit configured to be worn on a face of a user; 
 a lens unit detachably coupled with the body unit and comprising a fastening protrusion which protrudes toward the body unit; and 
 a fastening unit which comprises a fastening groove to accommodate the fastening protrusion and is coupled with the body unit to lock or release the fastening protrusion, wherein 
 the fastening protrusion comprises a holding portion protruded at an end of the fastening protrusion, and the holding portion allows the fastening protrusion to be engaged with the fastening groove, wherein 
 the fastening unit comprises: 
 a body portion comprising the fastening groove and movably coupled with the body unit in a vertical direction; 
 a pressurizing portion disposed on a top surface of the body portion and, when pushed, moving the body portion into the body unit; 
 a protruding portion which is disposed on an inner side of the pressurizing portion and protrudes toward the fastening protrusion, wherein the body portion, the pressurizing portion, and the protruding portion are integrally connected; 
 a guide protrusion extended in a vertical direction; and 
 an elastic member disposed on the guide protrusion and providing elastic force to the pressurizing portion in the vertical direction, wherein 
 when the pressurizing portion moves along the vertical direction, an end of the protruding portion pushes an end of the fastening protrusion inserted into the fastening groove outward and the lens unit is separated from the body unit in a horizontal direction as the fastening protrusion is released from the fastening groove according to a movement of the body portion into the body unit in the vertical direction. 
 
     
     
       2. The goggles of  claim 1 , wherein a first inclined plane is formed at a part of the fastening protrusion in contact with the protruding portion. 
     
     
       3. The goggles of  claim 2 , wherein a second inclined plane facing the first inclined plane is formed at a part of the protruding portion in contact with the fastening protrusion. 
     
     
       4. Goggles comprising:
 a body unit comprising a pair of fastening units, each of the pair of fastening units comprising a pressurizing portion, a body portion having a fastening groove, and an elastic member; wherein the body portion and the pressurizing portion are integrally connected, wherein the body portion is movable along a first direction, and the elastic member provides elastic force to the pressurizing portion in the first direction; and 
 a lens unit detachably attached to the body unit and comprising a plurality of fastening protrusions, wherein each of the plurality of fastening protrusions corresponds to each of the pair of fastening units; wherein 
 the fastening groove locks or releases the fastening protrusion, and each of the pair of fastening units is a push button using the elastic member and wherein when the pressurizing portion moves along the first direction, an end of the protruding portion pushes an end of the fastening protrusion inserted into the fastening groove outward and the lens unit is separated from the body unit in a second direction perpendicular to the first direction, and wherein 
 each of the plurality of fastening protrusions has a holding portion which protrudes in a different direction from a longitudinal direction thereof, and the holding portion allows the fastening protrusion to be engaged with the fastening groove, wherein each of the plurality of fastening protrusions and the holding portion extend in different directions. 
 
     
     
       5. The goggles of  claim 4 , wherein the pair of fastening units includes a first fastening unit and a second fastening unit, and the first fastening unit and the second fastening unit are disposed on opposite sides of the body unit. 
     
     
       6. The goggles of  claim 5 , wherein the first fastening unit has a first pressurizing portion and the second fastening unit has a second pressurizing portion, and wherein when the first pressuring pressurizing portion and the second pressurizing portion are pushed in opposite directions, the lens unit is detached from the body unit. 
     
     
       7. The goggles of  claim 4 , wherein the body unit includes two pairs of fastening units.